Isaac mast



I. MAST.

Vermn Suffocaters.

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NITED ATES f ISAAC MAST, OF ROXBOEOUGH, PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN VERMINeSUFFOCATORS.I

Specification forming part of Letters Patent No. 151,4125, dated May 26, 1874; application filed March 30, 1874.

To all whom it may concern:

Be it known that I, ISAAC MAST, of Roxborough, Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Vermin -Sufi'ocatorg and that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings and to the letters of reference marked thereon making a part of this specication.

This invention has for its object the extermination of vermin, -particularly burrowing rodents; and the invention consists in a generator, wherein are generated carbonio-acid and other gases obnoxious to animal life, and a device combined therewith, whereby the noxions gases are forced into the holes and other hiding-places of the vermin.

In the accompanying sheet ofv drawings, Figure lis a longitudinal section of my apparatus; Fig. 2, a plan or top view of same and Fig. 3, an end view partly in section, showing the arrangement of pipes.

Similar letters of reference indicate like parts in the several figures.

A is a cylindrical vessel of sheet metal or otherwise, lined with lire-brick, and provided with small grate-bars or openings a. This cylindrical vessel rests upon a base, B, the base B being provided with a hand-hole covered by an air-tight plate, c. Fitted on the top of the cylinder A is a box or drum, (l, with a hand-hole tightly secured by a screwcap, d, or otherwise. Extending from the box or drum C, and also from the base B, are two pipes, e f. The pipe or tube e extends downward and upward, again downward, again upward, (see Fig. 3,) entering into a space, D, over the bellows-box E, the pipe f extending from the base B into the lower part of said bellows-box E. N Vithin the box E is iitted a bellows, F, into the lower part of which the pipe f enters, as shown in Fig. l. To that end of the pipe e that enters into the space above the bellows-box E is fitted a flexible hose, Gr. Secured to the bellows F is a handle, H, and between the bellows-box E and space D is a movable partition, j.

My apparatus being constructed substantially as above described, it is operated as follows: A charcoal or otherire being kindled on the grate-bars a, sulphur or any other substance that will generate noxious vapors suliicient to destroy animal life is placed on the lire, through the opening in the top of the box or drum C, the opening being then tightly closed by the cap d. rIhe bellows is operated by the handle H, when a blast of air is driven through the pipe f into the base B, through the gratebars a, and the superincumbent substances forcing the noxious vapors generated in the cylinder A into the box or drum C, whence it issues through the pipe c and its several convolutions or lengths, iinally iinding exit through the flexible pipe G, which may then be inserted into any hole or crevice which is suspected of being the hiding-place oi' the vermin, and in this way a continuous stream of noxious vapors may be forced into what would otherwise be the inaccessible retreats of the vermin it is sought to exterminate.

The passage of the heated vapors through the several extensions of the pipe e will in a great measure cool the vapors, so that they will not be dangerously hot when forced into combustible hiding-places.

The pipe f has iitted within it avalve, which opens to allow the current of air to be forced through said pipe, and closes when the bel* lows is being lled with air.

rIhe opening in the base B covered by the plate c is intended to admit air while the fire is burning on the grate-bars, after which it is closed, and also to permit the ashes to be moved from under the grate-bars a.

WV hen the apparatus is not in use the handle H of the bellows is unshipped and placed within the space D over the bellows-box, and the exible pipe G is coiled away within said box, over which may be placed a cover, I.

It is evident that any kind of a jointed or flexible pipe will answer the purpose of the rubber or elastic tube G.

The whole apparatus is very small and readily moved from place to place, occupying but very little room, and is thoroughlyeflicacious for thc purpose for which it is designed.

I am aware that it is not new to use noxious vapors in destroying insects, &c.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The herein-described portable apparatus for generating and applying noxious vapors for destroying insects7 8vo., composed of the generating-chamber and its reservoir, coolingpipes, bellows, and discharge pipe or nozzle7 Witnesses:

J. P. DELANEY, P. J. TAYLOR.

ISAAC MAST. 

